diff --git a/iris_c/Makefile b/iris_c/Makefile
index 97d48d3..a9d2e30 100644
--- a/iris_c/Makefile
+++ b/iris_c/Makefile
@@ -1,10 +1,10 @@
 CC = gcc
-CFLAGS = -Wall -Wextra -O2
+CFLAGS = -Wall -Wextra -Werror -pedantic -O2
 TARGET = main
 
 .PHONY: all clean
 
-all: clean $(TARGET)
+all: $(TARGET)
 
 $(TARGET): main.c random.c random.h
 	$(CC) $(CFLAGS) -o $@ main.c random.c